If you have time for a day trip that’s a short distance out of Copenhagen, the 30-minute train ride to Roskilde and its award-winning Viking Ship Museum is well worth it. The museum displays five 1000-year-old Viking ships that were found in the local Roskilde fjord in the 1960s – hundreds of thousands of pieces that have been carefully treated and reconstructed. And it’s a beehive of activity with demonstrations of Viking ship building.